Jack W4 Series User Manual

注意：为了防止机器突然启动造成人身事故，请关掉电源，确认电机确实停止转动
后再进行操作！（Warning: In order to avoid any accident, before operating
please make sure power is off and motor is stopped. ）
4、差动的调节（differential ratio adjustment）
差动调节范围在 0.65-1.3 内，松开调节螺钉，上下扳动，往上是顺差动，往下是逆
差动。（differential ratio adjustment range from 0.65-1.3, release the adjust
screw, move up or down to adjust. ）
图 5-6（Figure 5-6）
注意：为了防止机器突然启动造成人身事故，请关掉电源，确认电机确实停止转动
后再进行操作！（Warning: In order to avoid any accident, before operating
please make sure power is off and motor is stopped.）

Jack W4 Series Specifications

General

Number of Threads	3 or 4
Type	Overlock
Lubrication	Automatic
Motor	Servo motor
Stitch Types	Overlock
Bobbin	None (uses loopers)
Speed	Adjustable
Presser Feet	Standard Overlock Foot